USADA announced today that an independent arbitrator has rendered a decision in the case of field hockey athlete Adam Miller of London, United Kingdom. After an evidentiary hearing on July 20, 2026, the arbitrator determined that Miller, 34, will receive a two-year sanction after committing three or more Whereabouts Failures within a 12-month period.
After he entered USADA’s Registered Testing Pool (RTP) on November 12, 2025 and was informed of his RTP inclusion via phone and email, Miller failed to submit any Whereabouts information. This occurred despite repeated warnings and outreach from USADA. In failing to file any Whereabouts information over an approximately six-week period, Miller accrued a total of five Whereabouts Failures.
The accumulation of three or more Whereabouts Failures constitutes a rule violation under the USADA Protocol for Olympic and Paralympic Movement Testing, the United States Olympic and Paralympic Committee National Anti-Doping Policy, and the International Hockey Federation Anti-Doping Rules, all of which have adopted the World Anti-Doping Code (the Code).
Under the Code, the period of ineligibility for first Whereabouts Failure rule violations ranges from one to two years depending on the athlete’s degree of fault. In this case, the independent arbitrator concluded that as an experienced international-level athlete, Miller’s failure to file any Whereabouts information demonstrated a high degree of fault.
Miller’s two-year period of ineligibility began on January 30, 2026, the date his provisional suspension was imposed. In addition, Miller has been disqualified from all competitive results obtained on and after November 28, 2025, the date of his third Whereabouts Failure, including forfeiture of any medals, points and prizes.
The decision, as well as all other arbitral decisions, can be found here.
Accurate Whereabouts information is crucial to locate athletes for effective out-of-competition testing, which helps deter and detect doping by enabling no-advance notice sample collection. This is especially important because some prohibited substances have limited detection windows and the most effective test timing must remain unpredictable. All athletes within USADA’s RTP and Clean Athlete Pool are required to provide accurate and up-to-date whereabouts information in accordance with the anti-doping rules.
In an effort to aid athletes, as well as support team members such as parents, coaches, and medical professionals in understanding the rules applicable to them, USADA provides comprehensive instruction on its website on the testing process and prohibited substances, how to file and update athlete Whereabouts, how to obtain permission to use a necessary medication, and the risks and dangers of taking supplements, as well as performance-enhancing and recreational drugs.
In addition, USADA manages a drug reference hotline, Global Drug Reference Online (GlobalDRO.com), conducts educational sessions with National Governing Bodies and their athletes, and distributes a multitude of educational materials, such as a supplement guide, a nutrition guide, a clean sport handbook, and periodic alerts and advisories.
USADA makes available a number of ways to report the abuse of performance-enhancing drugs in sport in an effort to protect clean athletes and promote clean competition. Any tip can be reported using the USADA Play Clean Tip Center, by text at 87232 (“USADA”), by email at playclean@USADA.org, by phone at 1-877-Play Clean (1-877-752-9253) or by mail.
USADA is responsible for the testing and results management process for athletes in the U.S. Olympic and Paralympic Movement and is equally dedicated to preserving the integrity of sport through research initiatives and educational programs.
For more information or media inquiries, email Media@USADA.org.
